STUDIES ON THE VILSMEIER-HAACK REACTION. PART III-REACTION OF 3-METHYL-1-PHENYL-4-ARYLIDENE-2-PYRAZOLIN-5-THIONE

STUDIES ON THE VILSMEIER-HAACK REACTION. PART III-REACTION OF 3-METHYL-1-PHENYL-4-ARYLIDENE-2-PYRAZOLIN-5-THIONE

The 3-methyl group in 3-methyl pyrazolthione derivatives (2,3) has been found to undergo diformylation by Vilsmeier reagent to give the aminoacroleins 4.5 with some reagents affords the related l-phenyl-4-arylidene-5-pyrazolthione derivatives (8-21) with different heterocyclic systems at the 3-posit...

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Veröffentlicht in:Phosphorus, sulfur, and silicon and the related elements sulfur, and silicon and the related elements, 1989-10, Vol.45 (3-4), p.155-159
Hauptverfasser: Awad, Ibrahim M.A., Hassan, Khairy M.
Format: Artikel
Sprache:eng
Schlagworte:
arylidene pyrazolonethione
bis piperazine
pyrazole and isoxazole
Pyrazolonethione
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Zusammenfassung:The 3-methyl group in 3-methyl pyrazolthione derivatives (2,3) has been found to undergo diformylation by Vilsmeier reagent to give the aminoacroleins 4.5 with some reagents affords the related l-phenyl-4-arylidene-5-pyrazolthione derivatives (8-21) with different heterocyclic systems at the 3-position.
ISSN:1042-6507
1563-5325
DOI:10.1080/10426508908045012